Engine-cooling means



March 13, 1928. 6 1,662,269

, P.- L. HOWE ENG'INE, COOLING MEANS Filed Feb. 11 1927 INVENTOR.

- zd filess: BY

M I A TTORNEY.

Patented Mar. 13, 1928.

unireo STATES PATENT OFFICE.

EI-IILIP L. HOWE, OF WIIiSON, TEXAS.

ENGINE-COOLING MEANS.

Application filed February 11, 1927. Serial No. 167,433. 7

durable, not liable to get out of order, and

which can be reacily and easily applied to 1n the accompanying drawing,which ilin trates the preferred embodiment of my invention, as appliedto an automobile,

\ 1 s a side view, partly in side elevapartly in vertical section, andpartly broken away, of my improved cooling means, shown applied to anautomobile, the radiaund portions of the hood of which .s a frontelevation of the con reference characters designate similar parts in thedifferent views.

1 designates an ordinary liquid containing automobile radiator, havingthe usual inlet pipe 2 and outletpipe 3 connected with the engine, notshown. I

The radiator 1 is adapted to contain cooling liquid 4:, which may, suchas is commonly employed, be water, water mixed with alcohol orglycerine, or other non-freezing liquid.

The radiator 1 has a vapor vent, which, as shown, is a pipe 5, the upperend of which is above the liquid level in the radiator 1, and which,usually, in ordinary use oommunicates with the atmosphere, but which, inimproved construction, connects with a liquid containing condenser 6below the liquid rel therein, preferably to the bottom thereof, asshown. The condenser 6 may be another radiator similar to the radiator1, and located, preferably in the air path of the fan located in therear of the radiator 1, and preferably supported in any desired mannerdirectly in front of the radiator 1, as shown.

The condenser 6 may have the usual top filling tube 8 normally closed bya cap 9,

so that the condenser will be closed to the" atmosphere. The radiator 1has the usual filling tube 10 normally closed by a cap 11, so that theradiator is also closed to the atmosphere when in use.

12 designates a tank adapted to contain liquid and having in its top anopening 13 which is always in communication with the atmosphere. Aconductor 14: connects at one end with the condenser 6 below the liquidlevel therein, as at the bottom thereof, as shown. The other end of theconductor 1% is connected to the tank 12 below the air opening 13,preferably to the bottom thereof, as shown.

A shut-oil valve 15, manually operable, may be provided in the conductor14.

The condenser 6, tank 12 and conductor 1% term together a liquidcontaining means adapted to receive and condense vapor discharged fromthe radiator 1 through the vent pipe 5 into the condenser 6.

1n the operation of my invention, when the liquid 41 in the radiator 1becomes heated and forms vapor, the "aps 9 and .11, be

tightly closed, pressure will obtain in the radiator 1, which will forcethe liquid and vapor in the pipe 5 into thecondenser 6, where the vaporwill be immediately condensed.

The shut-oil valve having been manually opened, the liquid added tothatin the condenser 6 through the condensation ofthe vapor, will passthrough the conductor ll into the tank 12. r

It will be understood that the radiator 1 and condenser (i havev bothbeen primarily filled with the cooling liquid 4.

When the engine cools, a partial vacuum will be formed in the upper partof the radiator 1, upon which the atmospheric pressure in the tank 12will force therefrom through the conductor 1d and into the corn denser6, an amount corresponding to the degree or cooling of the liquid in theradiator 1, which has been effected. An amount of liquid will be forcedfrom the condenser 6 through the vent pipe 5, back into the radiator 1,corresponding to the amount of liquid which has been forced byatmospheric pressure from the tank 12 through the conductor 14- into thecondenser 6.

The shut-0E valve 15 is normally open, and need be closed only whenthecap 9 is removed so that the condenser 6 may be filled. The valve 15.however. required and must he closed during the filling operation. whenthe tank 12 is located, as shown at an elevation at which the liquidwill flow by gravity from the condenser G into the tank 152.

\Vith the use of my invention. the loss of? alcohol from the coolingliquid by evaporation. and the loss of the cooling liquid itself byevaporation will be very small. as such can only occur. with the partsin operative condition, only through the air opening 13 ot' the tank1:2, which opening may be quite small.

1 do not limit my invention to the structure shown and described, asmany modifications. within the scope of the appended claims. may be madewithout departing from the spirit of my invention.

\Vhat I claim is:

1. In an engine cooling means. a liquid containing radiator having avapor vent, a liquid containing condenser closed to the atmosphere andinto which said vent discharges below the liquid level therein. andliquid receiving and containing means open to the atmosphere andcommunicating with said condenser below the liquid level in thecondenser.

2. In an engine cooling containing radiator having a vapor vent. aliquid containing condenser closed to the atmosphere and into which saidvent discharges below the liquid level therein, a tank open to theatmosphere, and a conductor connectin c with said condenser below theliquid level therein and connecting with said tank and disposed sothatliquid will pass theremeans. a liquid through from the condenser tosaid tank and from the tank to said condenser.

3. In an engine cooling means, a liquid containing radiator. having avapor vent, a liquid containing condenser closed to the atmosphere andinto which said vent. discharges below the liquid level therein. a tankopen to the atmosphere, a conductor com'iectcd to said condenser belowthe liquid level therein and connected to said tank and disposed so thatliquid will pass thercthrough from said condenser to said tank and fromsaid tank to said condenser. and a manually operable shut-oil valve. insaid conductor.

-l. In an engine cooling means. a liquid containing radiator having avapor vent. a liquid containing condenser c osed to the atn'losphere andinto which said vent discharges below the liquid level therein. a tankhaving an opening comnmnicating with the atmosphere, and aconductorconnected with said condenser below the liquid level therein andconnected with said tank below said opening.

5. In an engine cooling means. a. liquid containing radiator havin, avapor vent. a liquid containing condenser closed to the atmosphere andinto which said vent discharges below the liquid level therein. a tankhaving an opening conununicating with the atmosphere. a conductorconnected with said condenser below the liquid level therein andconnected with said tank below said opening. and a manually operableshut-oil valve in said conductorin testimony whereot l have signed myname to this sptazitication.

PHILIP IA, lltlll' l l.

